This drill bit is compatible with a 1/4 inch hexagonal shaft system for versatile use with screwdrivers, impact wrenches and drilling rigs. The Impact Control HSS spiral drill bit provides extremely robust drilling in metal, especially with screwdrivers. The extremely strong core is extremely robust. The spiral hammer drill bit is precision ground from solid metal and has an oxidized notch that gives it outstanding surface quality for cutting through materials with reduced wear. It is suitable for use on alloyed and non-alloyed steel, cast steel, cast iron, sintered iron, non-ferrous metals, sheet metal and plastic. Package of 1 piece.